Centrifugal liquid-separator.



No. 718,724. PATENTED JAN. 20, 1903.

v 0. OHLSSON.

OENTRIIEUGAL LIQUID SEPARATOR.

APPLICATION FILED FEB. 26, 1902.

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PATENTED JAN. 20, 1903. o. OHLSSON, Q GENTRII'UGAL LIQUID SEPARATOR.

I APPLICATION FILED IEB ZB, 1902. I0 MODEL.

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INVENTOR WITNESSES:

ATTORN'EY mgm Unrrnn STATES PATENT OFFICE.

OLOF OHLSSON,-OF SGDERTELGE, SVEDEN.

CENTRIFUGAL LIQUID-SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 718,724, dated January 20, 1903.

Application filed February 26, 1902. fierial No. 95,720. (No model.)

To all whom it may concern:

Be it known that I, OLOF OHLSSON, a citizen of the United States, residing at Sodertelge, in the Kingdom of Sweden, have invented certain new and useful Improvements in Centrifugal Machines, of which the following is a specification,

This invention relates to a centrifugal apparatus or machine which has removably mounted in its drum adevice called a liner, which is removable for cleaning.

Heretofore, so far as known, when provision has been made for the centering of a centrifugal body, such as a centrifugal separating apparatus, the drum and its liner have been considered as one body, and the drum has been given wide and laterally-yielding bearings, so that it might center itself by.

finding an axis of rotation corresponding to the common center of gravity; but for many reasons not necessary to explain here it has been found very difficult with this construction to get a perfectly steady motion. this reason the object of the present invention has been to attain the desired steadiness of motion by so constructing and mounting the liner in the drum that it may under the influence of the centrifugal force center itself separately from or independently of the drum. The liner is movable within the drum; but it is of such form and construction that its center of gravity is substantially coincident with the center of gravity of the drum.

In the accompanying drawings, which illustrate embodiments of the invention, Figure 1 is a vertical axial section of a drum and liner embodying the invention, and Fig. 2 is a horizontal section at :0 c in Fig. 1. Fig. 3 is an axial section similar to Fig. 1, illustrating a modified construction; and Fig. 4 is a cross-section following the line y z in Fig. 3.

In both of the constructions shown the liner consists of a plurality of somewhat conical plates 1, superposed in the drum and each having in it a central aperture, through which extends vertically the axially-disposed inlettube 2 of the drum. At the lower part of the tube 2 is an exteriorly-disposed shoulder 3, which is formed by the upper end of the embracing neck of a conical base-plate 4, which has in it perforations or apertures 5. The conical plates 1 in Fig. 1 have each a short For neck 6, which embraces the tube 2, the lower plate of the series bearing on the shoulder 3 and the others superposed one above the other on this lower plate, as clearly shown. The necks 6 on the plates are of such length as to separate the plates to the extent desired. The opening in the neck 6 is of somewhat greater diameter than the tube 2, and each plate 1 is thus permitted to adjust itself laterally by a slight movement independently of the drum and also of the other plates or cones, so as to center itself when the drum is rotating.

It would be feasible, of course, to connect the plates 1 together in groups of two or more, so that the groups would shift laterally, or to connect the whole of them together, so that they would shift in mass; but it is preferred to leave them separate, so that they may shift independently each for itself, since otherwise the size of the aperture in the neck of the plate would have to be greater. The grouping and connecting together of the plates 1 is illustrated in Fig. 3. In this construction the necks 6 are omitted and the base 4 made integral with the tube 2. The lower plate 1 is supported at its margin on the base 4, and the margins of the other plates 1, which are superposed, are supportedin the same manner, being separated to the proper extent by bearing-pieces 7. Thus the entire series or set of plates 1 can slide laterally on the base4 or each plate may slide laterally on its support. If the tube 2 is adapted to swing laterally in the drum from a support at the top, as shown in Fig. 3, so that it may vibrate radially in every direction, the plates 1 may be connected to the said tube or to the base 4, which is integral with the tube. A pin 8, (seen in Figs. 3 and 4,) projecting upward from the bottom of. the drum and en-- gaging an enlargedaperture in the base 4, serves as a guide and limiting-stop. The blue milk escapes laterally between the supports 7, and the cream flows upwardly through holes 9 in the plates.

It will be obvious that the form and spacing of the superposed plates can be varied somewhat without departing from the invention to a material extentthat is, they are represented as conical in shape; but they might obviously be pyramidal in form. The important feature is the symmetrical disposi tion of the plate about the drum-axis and its radial movement bodily in adjusting its center of gravity to the axis of rotation.

Having thus described my invention, I claim 1. In a centrifugal apparatus, the combination with the rotatable drum,of a liner therein composed of a plurality of superposed and spaced plates of suitable form, said plates being supported within the drum and movable laterally within the latter, the center of gravity of the plates being maintained substantially coincident with the drum-axis during the rotating of the latter by the lateral shifting of the plates, substantially as and for the purpose set forth.

2. In a centrifugal separator, the combination with the rotatable drum, of a liner therein composed of a plurality of superposed and spaced plates of suitable form, said plates having their center of gravity substantially in the axis of the drum and being movable laterally within the latter, an inlet-tube in the drum for the milk, and a base connected with said inlet-tube, on which said plates are supported, substantially as set forth.

3. In a centrifugal apparatus, the combination with the rotatable drum, an inlet-tube for the milk suspended at its upper end in said drum so that it may swing radially in all directions therein, and a support on said tube for a series of spaced and superposed plates, of the said plates, mounted on said tube so as to embrace it, whereby said mass of plates is moved radially by the swinging of the tube, for the purpose specified.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

OLOF OHLSSON.

Witnesses:

ERNST SVANQVIST, AUGUST SoRENsEN. 

